4,071 research outputs found
Famas-NewCon: A generator program for stacking in the reference case
The FAMAS-Newcon project aims at developing new logistic control structures for a containerterminal capable of handling jumbo container ships within 24 hours. In one of the subprojectsstacking aspects is studied. This report describes a generator model in which on the basis of a global description arrival and departure moments of individual containers are generated for a medium term (15 weeks). The global description consists of a specification of the modal split in terms of containers handled by jumbo's, deepsea, shortsea, rail, barge and trucks, next a specification of the number and type of containers transported by an individual jumbo and deepsea and finally a specification of the dwell time. The output of the generator program is a file with the following container information: arrival and departure times,import/export modality and the import/export ship in case that is a deepsea or jumbo. This file serves as the input of a stacking program which is described in a sequel report. The advantage of this construction is that several stacking strategies can be compared with the same arrival and departures of containers.generator program;stacking;logistic control structures
Multicriteria Evaluation with Mixed Qualitative and Quantitative Data
This paper is concerned with the development of a new multicriteria evaluation approach capable of handling mixed quantitative and qualitative data. First, a brief overview is given of the state of the art of multicriteria evaluation in urban and regional planning. A mixed data evaluation approach which includes three techniques based on different interpretations of basic assumptions is also discussed. Next, it is shown that there are some practical ways of dealing with the weighting problem that arises in evaluation. Finally, an illustration of the mixed data approach is provided by means of an empirical application to a housing allocation problem
Density and of surface and bulk spins in diamond in high magnetic field gradients
We report on surface and bulk spin density measurements of diamond, using
ultra-sensitive magnetic force microscopy with magnetic field gradients up to
0.5 T/m. At temperatures between 25 and 800 mK, we measure the shifts in
the resonance frequency and quality factor of a cantilever with a micromagnet
attached to it. A recently developed theoretical analysis allows us to extract
a surface spin density of 0.072 spins/nm and a bulk spin density of 0.4 ppm
from this data. In addition, we find an increase of the time of the
surface spins in high magnetic field gradients due to the suppression of spin
diffusion. Our technique is applicable to a variety of samples other than
diamond, and could be of interest for several research fields where surface,
interface or impurity bulk spin densities are an important factor.Comment: 7 pages, 6 figure
A Note on the Definition and the Development of Cerebellar Purkinje Cell Zones
The definition of Purkinje cell zones by their white matter comprtments, their physiological properties, and their molecular identity and the birthdate of their Purkinje cells will be reviewed
Dynamic assessment and reading instruction
The purpose of this action research was to discover if the dynamic nature of assessment could be incorporated into a classroom and successfully used in reading instruction. This was a case study of six students in my 6th grade classroom in Spring, 2003. These students self-selected chapter books that were considered to be above their reading level. They were closely monitored as they read the books, receiving assistance when needed. When they completed the book, they took a computerized, multiple-choice comprehension test on the book
Deiters’ Nucleus. Its Role in Cerebellar Ideogenesis
Otto Deiters (1834–1863) was a promising neuroscientist who, like Ferdinando Rossi, died too young. His notes and drawings were posthumously published by Max Schultze in the book “Untersuchungen über Gehirn und Rückenmark.” The book is well-known for his dissections of nerve cells, showing the presence of multiple dendrites and a single axon. Deiters also made beautiful drawings of microscopical sections through the spinal cord and the brain stem, the latter showing the lateral vestibular nucleus which received his name. This nucleus, however, should be considered as a cerebellar nucleus because it receives Purkinje cell axons from the vermal B zone in its dorsal portion. Afferents from the labyrinth occur in its ventral part. The nucleus gives rise to the lateral vestibulospinal tract. The cerebellar B module of which Deiters’ nucleus is the target nucleus was used in many innovative studies of the cerebellum on the zonal organization of the olivocerebellar projection, its somatotopical organization, its microzones, and its role in posture and movement that are the subject of this review
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